Polycom DOC2238A Network Router User Manual


 
MGC+ Hardware and Installation Manual
5-9
Corrective Maintenance
Corrective maintenance refers to changing or replacing an element of the
system that is faulty. The MGC+ has several components in which problems
may occur:
ReadiManager IAM
Control Unit (CU)
Function Modules:
Network Interface Modules (ISDN/T1-CAS, IP and MPI and/or Serial)
MUX+ Modules
Audio+ Modules
Video+ Modules
Data Modules
I/O Cards
Power Supply Module
Fans
Before replacing parts:
To ensure a part needs replacing, complete the troubleshooting
procedures.
Identify exactly which part needs replacing.
Make sure you have the correct replacement part on hand.
Make sure you are using proper ESD equipment, to prevent damage to
the system.
Warning!
All maintenance tasks are to be performed by qualified, authorized
personnel.
Use only replacement parts supplied by your dealer.
Follow all procedures. Do not skip any steps.
Unless specified differently, the procedures described here are the same for
both the MGC+100 and the MGC+50.